Inventor
MAKOHL FRIEDHELM
DE14 patents
⚠️ This page may combine multiple inventors who share the name “MAKOHL FRIEDHELM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAKER HUGHES INC
10 patentsUS6196336B1Mar 6, 2001
Method and apparatus for drilling boreholes in earth formations (drilling liner systems)
BAKER HUGHES INC270 citations99
US6419033B1Jul 16, 2002
Apparatus and method for simultaneous drilling and casing wellbores
BAKER HUGHES INC225 citations98
US5890534AApr 6, 1999
Variable injector
BAKER HUGHES INC62 citations96
US5845708ADec 8, 1998
Coiled tubing apparatus
BAKER HUGHES INC49 citations96
US5738173AApr 14, 1998
Universal pipe and tubing injection apparatus and method
BAKER HUGHES INC72 citations95
US6850068B2Feb 1, 2005
Formation resistivity measurement sensor contained onboard a drill bit (resistivity in bit)
BAKER HUGHES INC107 citations94
US6032744AMar 7, 2000
Universal pipe and tubing injection apparatus and method
BAKER HUGHES INC26 citations92
US5875850AMar 2, 1999
Universal pipe and tubing injection apparatus and method
BAKER HUGHES INC21 citations92
US5823267AOct 20, 1998
Universal pipe and tubing injection apparatus and method
BAKER HUGHES INC25 citations92
US7234546B2Jun 26, 2007
Drilling and cementing casing system
BAKER HUGHES INC14 citations80